Software Architect's Handbook

Step 5 – Assess scenario interaction

In this step, the reviewers analyze the interaction of the scenarios. If multiple related scenarios interact with the same component, this may be acceptable. However, if multiple unrelated scenarios interact with the same component, it could be an indication of a poor design. Further analysis should be conducted to determine whether the component is lacking a clear separation of responsibilities.

Refactoring may be necessary to avoid different scenarios interacting with the same component. The component may have low cohesion, indicating that its elements are not closely related. It may also exhibit tight coupling, signifying that the component is highly dependent on another component. Low cohesion and ...